The Coinco BA30SA Bill Validator features a modular design. The bill path is very accessible for both customers and machine owner. The machine has a very high capacity bill box and up to 300 capacity stacker. It is made up of high impact and non-corrosive plastic for further durability. The design helps resist and minimize vandalism and counterfeit bills. The security switch is of the highest standard and the machine uses state of the art electronic logic system.